Fix Rule::ip4in6 comparing next header to wrong constant

The correct constant for IPv4-in-IPv6 is 4, not 0.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/rule_methods.rs b/src/rule_methods.rs
index ff46dc3..872317d 100644
--- a/src/rule_methods.rs
+++ b/src/rule_methods.rs
@@ -136,7 +136,7 @@ impl Rule {
             HighLevelPayload::Network(NetworkHeaderField::IPv6(IPv6HeaderField::NextHeader))
                 .build(),
         );
-        self.add_expr(Cmp::new(CmpOp::Eq, [0 as u8]));
+        self.add_expr(Cmp::new(CmpOp::Eq, [4 as u8]));
         self
     }
     /// Matches 6in4 packets.